EP1475932A3 - Interferer detection and channel estimation for wireless communication networks - Google Patents

Interferer detection and channel estimation for wireless communication networks Download PDF

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Publication number
EP1475932A3
EP1475932A3 EP04101990A EP04101990A EP1475932A3 EP 1475932 A3 EP1475932 A3 EP 1475932A3 EP 04101990 A EP04101990 A EP 04101990A EP 04101990 A EP04101990 A EP 04101990A EP 1475932 A3 EP1475932 A3 EP 1475932A3
Authority
EP
European Patent Office
Prior art keywords
wireless communication
channel estimation
communication networks
hypothesis
interferer detection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP04101990A
Other languages
German (de)
French (fr)
Other versions
EP1475932B1 (en
EP1475932A2 (en
Inventor
Timothy M. Schmidl
Eko N. Onggosanusi
Anand G. Dabak
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Texas Instruments Inc
Original Assignee
Texas Instruments Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Texas Instruments Inc filed Critical Texas Instruments Inc
Publication of EP1475932A2 publication Critical patent/EP1475932A2/en
Publication of EP1475932A3 publication Critical patent/EP1475932A3/en
Application granted granted Critical
Publication of EP1475932B1 publication Critical patent/EP1475932B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
    • H04L25/0244—Channel estimation channel estimation algorithms using matrix methods with inversion

Abstract

System and method for improving performance of digital wireless communications systems in the presence of interferers. A preferred embodiment (700) comprises generating a list of hypotheses from a list of known interferers and timing offsets (705), receiving a signal transmitted over-the-air (720), computing an error variance for each hypothesis (715), and selecting the hypothesis with the lowest error variance (725). The hypothesis can then be used to extract data from the received signal.
EP04101990A 2003-05-09 2004-05-07 Interferer detection and channel estimation for wireless communication networks Expired - Fee Related EP1475932B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US46917903P 2003-05-09 2003-05-09
US469179P 2003-05-09
US738508 2003-12-17
US10/738,508 US7218894B2 (en) 2003-05-09 2003-12-17 Interferer detection and channel estimation for wireless communications networks

Publications (3)

Publication Number Publication Date
EP1475932A2 EP1475932A2 (en) 2004-11-10
EP1475932A3 true EP1475932A3 (en) 2005-08-10
EP1475932B1 EP1475932B1 (en) 2010-08-11

Family

ID=32995088

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04101990A Expired - Fee Related EP1475932B1 (en) 2003-05-09 2004-05-07 Interferer detection and channel estimation for wireless communication networks

Country Status (3)

Country Link
US (1) US7218894B2 (en)
EP (1) EP1475932B1 (en)
DE (1) DE602004028544D1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7565111B2 (en) * 2004-02-26 2009-07-21 Texas Instruments Incorporated Single-antenna interference cancellation receiver in time slot communication system
TWI283135B (en) * 2004-04-07 2007-06-21 Benq Corp Communication channel characteristic estimation method
DE102004027288A1 (en) * 2004-06-04 2005-12-29 Siemens Ag Method and device for the receiver-side estimation of data in a transmission system
US7542764B2 (en) * 2005-02-25 2009-06-02 Research In Motion Limited Method of using SNR to reduce factory test time
TWI294730B (en) * 2005-07-01 2008-03-11 Benq Corp Seamless wlan channel migration
US7599454B2 (en) 2006-07-24 2009-10-06 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for symbol alignment in diversity signal reception
US8639996B2 (en) * 2008-07-11 2014-01-28 Qualcomm Incorporated Systems and methods for uplink inter-cell interference cancellation using hybrid automatic repeat request (HARQ) retransmissions
US9119212B2 (en) 2008-07-11 2015-08-25 Qualcomm Incorporated Inter-cell interference cancellation framework
RU2490811C2 (en) 2008-09-12 2013-08-20 Квэлкомм Инкорпорейтед Method and apparatus for signalling to mobile device which set of training sequence codes to use for communication link
US8867999B2 (en) 2009-01-26 2014-10-21 Qualcomm Incorporated Downlink interference cancellation methods
US8938038B2 (en) * 2012-02-02 2015-01-20 Telefonaktiebolaget L M Ericsson (Publ) Extending the set of addressable interferers for interference mitigation
US8781037B2 (en) * 2012-06-27 2014-07-15 Intel Mobile Communications GmbH Method and a processing unit for processing a data signal
CN106324583B (en) * 2016-08-25 2018-10-26 哈尔滨工程大学 A kind of online elimination method of vector array passive sonar abnormal data

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7079601B2 (en) * 2001-06-19 2006-07-18 Telefonaktiebolaget Lm Ericsson (Publ) Efficient channel estimation in a digital communications system

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
MARKKU PUKKILA: "Channel estimation modeling", 2000, pages 1 - 15, XP002331761, Retrieved from the Internet <URL:http://www.comlab.hut.fi/opetus/260/chan_est.pdf> [retrieved on 20050614] *
PEKKA A. RANTA, MARKKU PUKKILA: "Chapter 3: Radio Aspects: Interference suppression by joint demodulation of cochannel signals", 1999, KLUWER ACADEMIC, DORDRECHT, NETHERLANDS, ISBN: 0792383516, XP002331762 *
RANTA P A ET AL: "CO-CHANNEL INTERFERENCE CANCELLING RECEIVER FOR TDMA MOBILE SYSTEMS", COMMUNICATIONS - GATEWAY TO GLOBALIZATION. PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON COMMUNICATIONS. SEATTLE, JUNE 18 - 22, 1995, PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC), NEW YORK, IEEE, US, vol. VOL. 1, 18 June 1995 (1995-06-18), pages 17 - 21, XP000532964, ISBN: 0-7803-2487-0 *

Also Published As

Publication number Publication date
US20040224636A1 (en) 2004-11-11
EP1475932B1 (en) 2010-08-11
EP1475932A2 (en) 2004-11-10
US7218894B2 (en) 2007-05-15
DE602004028544D1 (en) 2010-09-23

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